window::ChildMessage
NAME
ChildMessage - Receive a message from a subwindow
SYNOPSIS
#include "xwindow.h"
virtual void window::ChildMessage(w_msg &message);
DESCRIPTION
A window may send a message to its parent when something important happens
in the window.
Examples of situations where such messages are being sent are:
- A menu item is selected
- The text in an edit window is changed
- The slider in a scrollbar is repositioned.
- An item in a list is selected.
- A radio button is clicked.
In all these cases the parent window must be notified because other
windows may be affected by the event.
For example, when a slider in a scrollbar is repositioned, the contents
of the window next to the scrollbar must be adjusted accordingly.
A w_msg is a simple structure:
struct w_msg
{
int id;
long timestamp;
window *from;
};
SEE ALSO
ParentMessage
DIAGNOSTICS